Central Playa Grande 2-6-0 Locomotives in USA-Puerto_Rico


Class Details by Steve Llanso of Sweat House Media

Class Peligro (Locobase 14487)

Data from Baldwin Locomotive Works Specification for Engines as digitized by the DeGolyer Library of Southern Methodist University Volume 54, p. 262. See also Marie Cruz Soto, PhD "Inhabiting Isla Nena, 1514--2003: Island narrations, imperial dramas and Vieques, Puerto Rico" (University of Michigan dissertation, 2008), Works number was 53727 in September 1920.

For the CPG, the "peligro" (danger) would turn out to be plunging prices worldwide for sugar. Always a small plantation on the island of Vieques, the CPG would outlast the Central Vieques, the only other Central on the little island and the first to close in 1927. The CPG struggled on until it finally surrendered and declared bankruptcy in 1939. It's not quite clear what happened to the plantation Mogul at that point.

For other fauna on Vieques, a more persistent peligro would present itself beginning in 1941 when the US Navy acquired the island in 1941 to use for aerial and naval gunfire bombardment practice.

Principal Dimensions by Steve Llanso of Middle Run Media
ClassPeligro
Locobase ID14487
RailroadCentral Playa Grande
CountryUSA-Puerto Rico
Whyte2-6-0
Number in Class9
Road Numbers8
Gauge2'6"
Number Built9
BuilderBaldwin
Year1920
Valve GearStephenson
Locomotive Length and Weight
Driver Wheelbase (ft / m)7 / 2.13
Engine Wheelbase (ft / m)13.50 / 4.11
Ratio of driving wheelbase to overall engine wheelbase 0.52
Overall Wheelbase (engine & tender) (ft / m)34.54 / 10.53
Axle Loading (Maximum Weight per Axle) (lbs / kg)13,333 / 6048
Weight on Drivers (lbs / kg)40,000 / 18,144
Engine Weight (lbs / kg)46,000 / 20,865
Tender Loaded Weight (lbs / kg)33,500 / 15,195
Total Engine and Tender Weight (lbs / kg)79,500 / 36,060
Tender Water Capacity (gals / ML)1500 / 5.68
Tender Fuel Capacity (oil/coal) (gals/tons / Liters/MT)650 / 2460
Minimum weight of rail (calculated) (lb/yd / kg/m)22 / 11
Geometry Relating to Tractive Effort
Driver Diameter (in / mm)33 / 838
Boiler Pressure (psi / kPa)185 / 1280
High Pressure Cylinders (dia x stroke) (in / mm)11" x 16" / 279x406
Tractive Effort (lbs / kg)9225 / 4184.39
Factor of Adhesion (Weight on Drivers/Tractive Effort) 4.34
Heating Ability
Tubes (number - dia) (in / mm)60 - 2" / 51
Flues (number - dia) (in / mm)
Flue/Tube length (ft / m)11.33 / 3.45
Firebox Area (sq ft / m2)42.20 / 3.92
Grate Area (sq ft / m2) 9.10 / 0.85
Evaporative Heating Surface (sq ft / m2)396 / 36.80
Superheating Surface (sq ft / m2)
Combined Heating Surface (sq ft / m2)396 / 36.80
Evaporative Heating Surface/Cylinder Volume225
Computations Relating to Power Output (More Information)
Robert LeMassena's Power Computation1684
Same as above plus superheater percentage1684
Same as above but substitute firebox area for grate area7807
Power L13509
Power MT580.20

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